2025’s Best Travel Power Bank and How to Choose Wisely

If you’ve ever had your phone die right before boarding a flight or halfway through a road trip, you know how stressful it feels. From pulling up maps to snapping photos, your devices work overtime when you travel, and a dead battery can throw everything off.

That’s why having the best travel power bank in your bag is absolutely essential. In this guide, you’ll discover the top picks for 2025, what actually matters when choosing one, and a few smart tips to make traveling with power banks hassle-free.

 

Best Travel Power Banks Available in 2025

Some travelers just want a slim backup that slips into a pocket for quick top-ups, while others need serious wattage to keep a laptop alive on long-haul flights. Below are four solid options from Anker in 2025, each designed with different kinds of trips and devices in mind.

1. Anker MagGo Power Bank (5K, Slim)

If you like to travel light, this Anker MagGo Power Bank (5K, Slim) is built for those just-in-case moments. It snaps securely to MagSafe-compatible iPhones and delivers up to 15W Qi2-certified wireless charging, so you can power up while navigating through an airport or exploring a new city—no cables required.

There’s also a 20W USB-C port for wired top-ups when you want a quicker charge. At just 8.6 mm thin and weighing about 122 g, it disappears into a pocket or small crossbody. Thanks to its advanced graphene cooling system, dual NTC chips, and smart charging optimization, this battery pack runs noticeably cooler, making it a safer choice to carry while in use.

Best for: Minimalist iPhone users who want the lightest, most portable option for emergencies and quick snap-on charging during the day.

What’s good:

• 15W Qi2-certified wireless chargingfor easy, snap-on top-ups
• 5,000 mAh capacity in an ultra-slim, 122 g body
• 20W USB-C portadds flexibility for wired charging
• Advanced cooling design aimed at safer charging on the go

2. Anker MagGo Power Bank (10K, Slim)

Need more? This Anker MagGo Power Bank (10K, Slim) doubles the stamina while staying slim enough for daily travel. You get the same 15W Qi2-certified snap-on wireless charging for cable-free convenience, plus a USB-C port with up to 30W output if you’d rather plug in.

Even better, the bank itself recharges at up to 30W, so you can top it back up quickly during a layover or coffee stop. At around 200 g and just under 15 mm thick, it still slips easily into a day bag without feeling bulky. It’s the kind of bank you can rely on for a full day of maps, photos, and messaging without worrying about your phone dipping into the red.

Best for: All-day travelers who want both fast 30W wired charging and 15W magnetic wireless in one slim package.

What’s good:

• 10,000 mAh capacityfor about two full phone charges
• 30W USB-C PD output + 30W inputfor faster device charging and refills
• 15W Qi2-certified wireless charging
• ActiveShield 2.0 checks the temperature over 3 million timesa day to keep your device from overheating.
• Slim, travel-friendly design at ~200 g

3. Anker Nano Power Bank (10K, 45W, Built-in Retractable USB-C Cable)

The Anker Nano Power Bank (10K, 45W, Built-in Retractable USB-C Cable) is built for speed and simplicity. Its 10,000 mAh capacity is paired with up to 45W USB-C output, which means it can charge not just phones and tablets but also many thin-and-light laptops. It also supports Samsung Super Fast Charging 2.0 (45W PPS), so Galaxy users can get their maximum supported speed.

The highlight is the retractable 0.7 m USB-C InstaCord, which pulls out when you need it and tucks back in when you don’t—no extra cables to pack. A smart display shows real-time input/output and battery percentage, while the bank itself recharges at up to 30W with a PD wall charger.

Anker’s ActiveShield 3.0 monitors temperature constantly to keep charging safe. For travelers juggling multiple gadgets, you can top up three devices at once via the USB-C cable, USB-C port, and USB-A port.

Best for: USB-C travelers, especially Samsung users, who want a clutter-free power bank with 45W output and a built-in cable.

What’s good:

• Max 45W USB-C outputwith Samsung Super Fast Charging 2.0 (PPS) support
• Built-in retractable USB-C cable (0.7 m), tested to withstand 20,000 bends and 20,000 pulls
• 30W USB-C inputfor faster self-charging
• Smart displaywith live power and status info
• ActiveShield 3.0thermal monitoring for safe charging
• Clear multi-device power sharing rules (2x USB-C + 1x USB-A)

4. Anker 737 Power Bank (PowerCore 24K)

For serious power needs, the Anker 737 Power Bank delivers. With 24,000 mAh capacity and 140W PD 3.1 two-way fast charging, it’s one of the few banks that can comfortably recharge laptops along with phones and smaller gadgets.

There are two USB-C ports and one USB-A, so you can power several devices at once, and the smart digital display shows real-time power flow and time-to-full estimates. Despite its punch, it’s still compact enough for travel, though at ~630 g it’s more suited to a backpack than a pocket. If you want one power bank to handle everything—from your ultrabook to your earbuds—this is the one you can lean on.

Best for: Power users who need laptop-level charging (140W) and want to manage multiple devices at once.

What’s good:

• 140W PD 3.1 bi-directional charging
• 24,000 mAh capacityfor all-day, multi-device use (enough for about 4-5 full phone charges)
• Three ports(2× USB-C, 1× USB-A)
• Smart digital displaywith real-time info
• Solid, travel-ready build (~630 g)

Factors to Consider When Choosing the Right Travel Power Bank

Choosing the right power bank comes down to how you travel, the devices you rely on, and airline regulations. Here are the main points to keep in mind before you buy:

Capacity (mAh & Wh)

Start by asking yourself how much power you really need. A 5,000 mAh pocket-sized bank is great for emergencies or a quick top-up during the day. A 10,000 mAh bank will recharge most phones once or twice. 20,000 mAh is enough to handle your phone, a tablet or handheld console overnight, while anything above that is usually for laptops and multi-device days.

Airlines, however, don’t look at mAh—they look at watt-hours (Wh). Most countries’ airlines, along with the CATSA, follow the same guidelines set by the International Air Transport Association (IATA):

• ≤100 Wh (about 27,000 mAh at 3.7V)is allowed in carry-on bags without question.
• 101–160 Whtypically needs prior airline approval (and often only up to two units).
• >160 Whis prohibited on passenger flights.

To convert if only mAh is listed, use: Wh = (mAh × V) ÷ 1000.

Here, V refers to the nominal voltage of the lithium-ion cells used in most power banks, which is typically 3.7V. For example, a 20,000 mAh pack at 3.7V ≈ 74 Wh, well under the 100 Wh ceiling.

Output Power & Fast-Charging Standards

Good travel power banks should do more than just trickle charge your phone. Look for USB-C with Power Delivery (PD), which has become the standard for fast charging. For phones, 20–30W output is usually enough.

For tablets, laptops, or multiple devices, you’ll want more output. PD 3.0 supports up to 100W, while the PD 3.1 standard raises the ceiling to 240W. In practice, power banks top out around 140W, which is more than enough for demanding laptops.

Some devices, like Samsung Galaxy phones, work best with PPS (Programmable Power Supply). PPS adjusts the charging voltage in real time, which helps keep the phone cooler while charging faster.

If you’re using a Galaxy S24 Ultra, Z Fold, or any other model that supports 45W Super Fast Charging 2.0, make sure your power bank specifically supports PD 3.0 with PPS at 45W to get the fastest speeds.

Recharge (Input) Speed

Don’t overlook how fast the bank itself recharges. A power bank that accepts 45–100W USB-C input can go from empty to full in as little as 90 minutes with the right wall charger, while lower input banks may take hours.

Ports and Cables

USB-C is now the default on most modern devices, so look for portable chargers that offer multiple USB-C ports. A single USB-A port is still useful for older cables, but it’s no longer the priority. Power banks with built-in cables help reduce clutter and save you from the hassle of forgetting cords.

Size, Weight & Form Factor

The bigger the capacity, the heavier the bank. For pocket use, something under 250g is more comfortable. For backpacks, weight matters less than durability—sturdy casings and reinforced ends protect against travel wear and tear.

Safety & Certification

Always check for proper safety standards. UL 2056 certification means the power bank has been tested for things like capacity accuracy, fire risks, and over-current protection. If you’re looking for the best power bank for international travel, compliance with UN 38.3 testing ensures it meets international safety rules for lithium batteries. These certifications help keep you safe and reduce hassles at airport security.

Consider Wireless Charging

If you’re tired of juggling charging cables with your iPhone, a magnetic wireless battery pack can feel like freedom—just snap it on and you’re good to go. The new Qi2 standard (basically the cross-platform evolution of Apple’s MagSafe) uses a ring of magnets to perfectly align the coils, which reduces wasted energy and bumps charging speeds up to 15W, double the old Qi limit of 7.5W.

Best Practices for Traveling with Power Banks

Once you’ve chosen the right power bank, it’s just as important to use it safely and in line with airline rules. A little preparation goes a long way toward avoiding delays or safety issues on the road.

• Carry-On Only: Power banks count as spare lithium-ion batteries, so they must go in your carry-on, never in checked luggage. If your carry-on is gate-checked, take the bank out and keep it with you.
• Know the Limits: Double-check the Wh ratingbefore you fly. Under 100 Wh is the simplest; 101–160 Wh usually requires airline approval. Anything bigger stays home. Having the label visible helps speed up security checks.
• Safe Charging Habits: Always charge on a hard, non-flammable surface. Don’t leave it on a bed, couch, or near flammable materials. Avoid leaving it charging overnight unattended and unplug once it’s full.If you notice it heat up unusually, stop using it immediately.
• Pack Smartly: Ideally, use a padded pouchto prevent scratches and protect from impact. Avoid packing it at the bottom of your bag where it could get crushed.
• Use the Right Cables: Stick to certified chargers and USB-C cablesthat match your device’s power needs. Look for the official USB-IF logos to avoid underperforming or unsafe cables.
• Temperature & Storage: Keep your power bank at room temperaturewhenever possible. Don’t leave it in hot cars, under direct sun, or in freezing conditions. Store it away from items that could catch fire.

Conclusion

Choosing the best travel power bank in 2025 comes down to knowing your devices and how you travel. Whether you just want a slim backup for your phone or a high-capacity portable charger that keeps a laptop running during long-haul trips, there’s an option that fits. Brands like Anker make it easier by offering everything from pocket-friendly magnetic packs to powerful multi-port banks. With the right charger in your bag, you’ll stay connected, capture memories, and travel without the stress of running out of power.

FAQs

Can you fly with a 20,000mAh power bank?

Yes. Airlines generally allow power banks up to 100Wh (about 27,000mAh at 3.7V) in carry-on bags. A 20,000mAh model is within this limit, so you can bring it on board. However, it must be packed in your carry-on, not checked luggage, and you should confirm with your airline for any extra restrictions before flying.

Should I get a 10,000mAh or 20,000mAh power bank?

Choose based on your needs. A 10,000mAh pack is lighter, easier to carry, and usually provides about 2 full phone charges, perfect for short trips or everyday use. A 20,000mAh power bank is bulkier but can deliver around 4-5 phone charges, making it a better choice if you travel often, carry multiple devices, or expect to be away from outlets for longer.

Is a 10,000mAh power bank enough for travel?

For many travelers, yes. A 10,000mAh power bank is compact, easy to carry, and usually gives your smartphone about two full charges, which is enough for a weekend trip or light use. If you plan to use your phone heavily for navigation, videos, or hotspot, or if you need to charge a tablet or multiple devices, a larger 20,000mAh model might be better.

Can I carry a 30,000mAh power bank in flight?

A 30,000 mAh power bank is roughly 111 Wh, which exceeds the standard 100 Wh airline limit. You can still bring it, but only in your carry-on and only with prior airline approval. Most airlines let you carry up to two spare batteries in the 101–160 Wh range with approval. Anything above 160 Wh isn’t allowed for passengers. It’s always smart to confirm with your airline before you travel.